GTS450 nbody

MSIのOC版GTS450での計測です。

$ /home/t_azu/NVIDIA_GPU_Computing_SDK/C/bin/linux/release/nbody -benchmark
Run "nbody -benchmark [-n=<numBodies>]" to measure perfomance.
	-fullscreen (run n-body simulation in fullscreen mode)
	-fp64       (use double precision floating point values for simulation)

> Windowed mode
> Simulation data stored in video memory
> Single precision floating point simulation
> Compute 2.1 CUDA device: [GeForce GTS 450]
4096 bodies, total time for 10 iterations: 14.827 ms
= 11.315 billion interactions per second
= 226.310 single-precision GFLOP/s at 20 flops per interaction

$ /home/t_azu/NVIDIA_GPU_Computing_SDK/C/bin/linux/release/nbody -benchmark -fp64
Run "nbody -benchmark [-n=<numBodies>]" to measure perfomance.
	-fullscreen (run n-body simulation in fullscreen mode)
	-fp64       (use double precision floating point values for simulation)

> Windowed mode
> Simulation data stored in video memory
> Double precision floating point simulation
> Compute 2.1 CUDA device: [GeForce GTS 450]
4096 bodies, total time for 10 iterations: 131.641 ms
= 1.274 billion interactions per second
= 38.234 double-precision GFLOP/s at 30 flops per interaction